Fix bytes per element for IntBuffer.

[Displee]

This is another critical bug fix. I've been stuck on this for months. My indices (geometry.setIndex) were correct but my model was messed up and I couldn't for the love of God figure out why. I traced it down all the way to the BYTES_PER_ELEMENT of threejs:
https://github.com/mrdoob/three.js/blob/dev/src/renderers/webgl/WebGLAttributes.js#L57

else if ( array instanceof Int32Array ) {

			type = gl.INT;

		}
...
return {
			buffer: buffer,
			type: type,
			bytesPerElement: array.BYTES_PER_ELEMENT,
			version: attribute.version
		}

Int32Array.BYTES_PER_ELEMENT = 4

in threekt we use 3 (which is incorrect):

val (type, bytesPerElement) = when (attribute) {
            is IntBufferAttribute -> {
                GL15.glBufferData(bufferType, attribute.buffer, usage)
                GL11.GL_UNSIGNED_INT to 3 // this was the evil-doer
            }
            is FloatBufferAttribute -> {
                GL15.glBufferData(bufferType, attribute.buffer, usage)
                GL11.GL_FLOAT to 4
            }
        }

this also solved the issue I had

[Displee]

Btw, do you mind making a new release?

[markaren]

Thanks for this, I will check it later today.

Btw, do you mind making a new release?

Github release, maven release or both?

[Displee]

A Maven release would be nice. I don't like to use jars xD.

[markaren]

Published r1-ALPHA-26 to Bintray.
Bintray is still functional for 1 more month.